Linux kernel connection.c file out-of-bounds read vulnerability

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. An out-of-bounds read vulnerability exists in versions of Linux kernel prior to 6.3.8, which stems from the fact that fs/smb/server/connection.c does not validate the relationship between the length field of the NetBIOS header and the size of the SMB header via pdu_size in ksmbd_conn_handler_loop, which an attacker could exploit this vulnerability to cause an out-of-bounds read.